“...The importance of D-Day is that, with great but necessary sacrifice, we began defeating the Germans.”
Inaccurate.
Implies that nothing of importance happened between May 1940 and June 1944.
We Americans need to stop thinking strictly in terms of foot troops with individual weapons. Any nation armed that way is helpless against weaponry that has been invented since the 1770s: submarines, steamships, smokeless powder, modern artillery, radio, radar, aircraft, guided missiles, etc.
“Implies that nothing of importance happened between May 1940 and June 1944.”
You’re correct on that.
Foot troops are obsolete.
But when you strip it all down, the bottom line is all of that technology is ultimately designed to give the advantage to the ground troops.
You bomb areas to pacify areas for ground troops to move in.